sort2dist.cpp: In function 'int main()': sort2dist.cpp:85: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sort2dist.cpp:85: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sort2dist.cpp:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result sort2dist.cpp:67: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result sort2dist.cpp:70: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result sort2dist.cpp:72: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result /tmp/ccoFj8xy.o: In function `main': sort2dist.cpp:(.text+0xcd): warning: the `gets' function is dangerous and should not be used.